Estimation of attenuation coefficient from B-mode ultrasound images

Description

We report on the estimation of both the attenuation coefficient and the attenuation power law exponent from simulated B-mode ultrasound images. It is well documented [1] that these parameters significantly diverge between normal breast tissue and malignant lesions. It is therefore of great importance to devise and test algorithms that facilitate accurate estimation of spatially resolved attenuation. k-Wave is a Matlab toolbox [2] for the time-domain simulation of acoustic wave fields that facilitates simulation of both linear and nonlinear wave propagation in homogeneous and heterogeneous tissue, as compared to strictly linear ultrasound simulation tools (e.g. Field II). k-Wave can also be applied to simulate arbitrary distributions (resolved down to single voxel sizes) of parameters including the speed of sound, mass density, scattering strength and to include power law acoustic absorption necessary for simulation tasks in medical diagnostic ultrasound. Via the spectral log difference technique, we obtain estimation results from simulated and thus well-known absorption distributions and compare the results to reference value.

Period	23 Sept 2020
Event title	Proceedings of the 6th International Conference on Sensors and Electronic Instrumentation Advances (SEIA' 2020), 23-25 September 2020
Event type	Conference
Location	AustriaShow on map